NL7806433A - Het electrolytisch etsen van een voorwerp van ferriet. - Google Patents

Het electrolytisch etsen van een voorwerp van ferriet.

Info

Publication number
NL7806433A
NL7806433A NL7806433A NL7806433A NL7806433A NL 7806433 A NL7806433 A NL 7806433A NL 7806433 A NL7806433 A NL 7806433A NL 7806433 A NL7806433 A NL 7806433A NL 7806433 A NL7806433 A NL 7806433A
Authority
NL
Netherlands
Prior art keywords
ferrite
electrolytic etching
electrolytic
etching
Prior art date
Application number
NL7806433A
Other languages
English (en)
Dutch (nl)
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of NL7806433A publication Critical patent/NL7806433A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
    • C04B41/5338—Etching
    • C04B41/5353—Wet etching, e.g. with etchants dissolved in organic solvents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/91—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics involving the removal of part of the materials of the treated articles, e.g. etching
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/02—Etching
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
    • G11B5/1335—Assembling or shaping of elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Magnetic Heads (AREA)
  • Soft Magnetic Materials (AREA)
NL7806433A 1977-06-14 1978-06-14 Het electrolytisch etsen van een voorwerp van ferriet. NL7806433A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52070231A JPS6047725B2 (ja) 1977-06-14 1977-06-14 フエライトの加工法

Publications (1)

Publication Number Publication Date
NL7806433A true NL7806433A (nl) 1978-12-18

Family

ID=13425573

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7806433A NL7806433A (nl) 1977-06-14 1978-06-14 Het electrolytisch etsen van een voorwerp van ferriet.

Country Status (6)

Country Link
US (1) US4214960A (ja)
JP (1) JPS6047725B2 (ja)
DE (1) DE2825890A1 (ja)
FR (1) FR2428690A1 (ja)
GB (1) GB2000190B (ja)
NL (1) NL7806433A (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5645774A (en) * 1989-09-19 1997-07-08 Ferronics Incorporated Method for establishing a target magnetic permeability in a ferrite
DE10034427B4 (de) * 2000-07-14 2004-04-15 Ralph Jagals Verfahren zum Herstellen eines aus einem magnetischen Werkstoff hergestellten Gegenstandes mit vorbestimmten magnetischen Eigenschaften
ITTO20010447A1 (it) * 2001-05-11 2002-11-11 Promotec Srl Taglio di lastre metalliche.

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1047995A (en) * 1910-03-09 1912-12-24 Edward G Schwuchow Process of etching plates by electricity.
GB761795A (en) * 1954-03-09 1956-11-21 Gen Electric Co Ltd Improvements in or relating to the manufacture of semi-conductor devices
US3078219A (en) * 1958-11-03 1963-02-19 Westinghouse Electric Corp Surface treatment of silicon carbide
NL250075A (ja) * 1959-04-10 1900-01-01
US3409523A (en) * 1966-03-10 1968-11-05 Bell Telephone Labor Inc Electroetching an aluminum plated semiconductor in a tetraalkylammonium hydroxide electrolyte
NL153947B (nl) * 1967-02-25 1977-07-15 Philips Nv Werkwijze voor het vervaardigen van halfgeleiderinrichtingen, waarbij een selectief elektrolytisch etsproces wordt toegepast en halfgeleiderinrichting verkregen met toepassing van de werkwijze.
US3527682A (en) * 1967-04-24 1970-09-08 Philco Ford Corp Process for electrolytically etching indium antimonide
US3560357A (en) * 1968-07-26 1971-02-02 Rca Corp Electroetching of a conductive film on an insulating substrate
US3560358A (en) * 1968-09-12 1971-02-02 Motorola Inc Electrolytic etching of platinum for metallization
GB1292060A (en) * 1969-04-15 1972-10-11 Tokyo Shibaura Electric Co A method of manufacturing a semiconductor device
NL6910274A (ja) * 1969-07-04 1971-01-06
NL7211910A (ja) * 1972-09-01 1974-03-05
US3929591A (en) * 1974-08-26 1975-12-30 Polychrome Corp Novel lithographic plate and method
GB1469005A (en) * 1974-11-28 1977-03-30 Standard Telephones Cables Ltd Standard telephones cables ltd semiconductor device manufacture
US4169026A (en) * 1976-07-23 1979-09-25 Matsushita Electric Industrial Co., Ltd. Etchant for electrolytic etching of a ferrite for a magnetic head and method of producing a magnetic head
JPS5312740A (en) * 1976-07-23 1978-02-04 Matsushita Electric Ind Co Ltd Liquid for electrolytically etching ferrite

Also Published As

Publication number Publication date
GB2000190B (en) 1982-03-17
DE2825890A1 (de) 1979-01-04
GB2000190A (en) 1979-01-04
JPS6047725B2 (ja) 1985-10-23
FR2428690A1 (fr) 1980-01-11
JPS544398A (en) 1979-01-13
FR2428690B1 (ja) 1981-08-28
US4214960A (en) 1980-07-29

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BV The patent application has lapsed